In short, trigger finger is a condition where your finger gets stuck in a bent position and then snaps straight.
- Inflammation causes locking. The tendons in your finger become inflamed and cannot glide smoothly.
- Medical treatment works. Options range from rest and splinting to steroid injections or surgery.
- Early intervention matters. Seeking help sooner can prevent permanent stiffness and restore full movement.
The primary reason for trigger finger is inflammation or narrowing of the sheath that surrounds the tendon in the affected finger. This condition, medically known as stenosing tenosynovitis, causes the finger to catch or lock when you try to straighten it. It can feel alarming, especially if you wake up with your finger stuck in a bent position.
The sensation often resembles a trigger being pulled and released, hence the name. While it can affect any digit, the ring finger and thumb are most commonly involved. Understanding the causes and treatments is the first step toward relief.
What Is the Main Reason for Trigger Finger?
As mentioned, the underlying reason for trigger finger involves your tendons. Tendons are tough cords of tissue that attach muscle to bone. In the hand, these tendons allow you to bend and straighten your fingers.
These tendons usually glide easily through a protective tunnel called a sheath. If the tendon becomes irritated or inflamed, it can swell. This swelling makes it difficult for the tendon to slide through the sheath.
Over time, the sheath itself may thicken. This creates a vicious cycle of irritation and inflammation. Eventually, the tendon may form a small nodule or lump that catches on the sheath, causing the locking sensation.
What Are the Common Symptoms?
The signs of trigger finger often start mild and progress over time. You might first notice a tender lump in your palm at the base of the affected finger. Stiffness is also common, particularly in the morning.
As the condition worsens, you will experience the classic catching or popping sensation. The finger may lock in a bent position and then suddenly pop straight. In severe cases, you may need to use your other hand to physically straighten the finger.
While trigger finger causes pain and locking, numbness or tingling is usually associated with nerve issues like carpal tunnel syndrome. However, it is possible to have both conditions simultaneously.
Who Is At Risk for Developing This Condition?
Certain factors increase your likelihood of developing trigger finger. It is more common in women than in men. Additionally, it occurs most frequently in individuals who are between forty and sixty years old.
Medical conditions play a significant role, as well. A study found that the prevalence of trigger finger is significantly higher in patients with type 1 or type 2 diabetes compared to the general population.
Repetitive gripping actions can also be a reason for trigger finger. People whose jobs or hobbies involve repeated hand use are at higher risk. This includes musicians, industrial workers, and farmers.
How Do Doctors Diagnose Trigger Finger?
Diagnosis usually does not require elaborate testing. Your physician typically reviews your medical history and conducts a physical examination. They will check your hand for tenderness and swelling.
They may ask you to open and close your hand to observe the motion. They will look for areas of pain and check for the characteristic clicking or locking. They will also feel for a lump in the palm.
Imaging tests are rarely necessary. An X-ray is generally used only if there is a concern about trauma or arthritis. The physical exam is usually sufficient to confirm the reason for trigger finger.
What Non-Surgical Treatments are Available?
Conservative treatments are often effective, especially if you catch the condition early.
- Rest is the primary recommendation. You should avoid activities that require repetitive gripping or grasping until symptoms improve.
- Splinting is another common approach. Wearing a splint at night can keep the finger in an extended position. This prevents you from curling your fingers while you sleep, which helps reduce morning stiffness.
- Medications can help relieve pain and inflammation. Nonsteroidal anti-inflammatory drugs (NSAIDs) such as ibuprofen (Advil, Motrin IB) or naproxen (Aleve) are often suggested. These drugs target the swelling that contributes to the reason for trigger finger.
Are Corticosteroid Injections Effective?
If conservative methods fail, your doctor may recommend a corticosteroid injection. This involves injecting a powerful anti-inflammatory medication directly into the tendon sheath. This is often the first line of treatment for many patients.
However, repeated injections may not be advisable. Overuse can weaken the tendon or damage the skin. Your healthcare provider will determine the appropriate schedule for your specific case.
When Is Surgery Necessary?
Surgery is reserved for severe cases or when other treatments do not work. The procedure is called “trigger finger release.” The goal is to widen the opening of the tunnel so the tendon can slide through easily.
This is typically an outpatient procedure done under local anesthesia. The surgeon makes a small incision in the palm. They then cut the sheath that is blocking the tendon movement.
Recovery is usually quick. You may be able to move your finger immediately after surgery. Full recovery can take a few weeks, but the locking sensation generally disappears right away.
In some cases, doctors can perform a ‘percutaneous release’ using a needle to release the tendon without making an open incision, leading to a faster recovery with no stitches.
Diagnosing and Treating Trigger Finger in Maryland
You do not have to live with the pain and inconvenience of a locked finger. Understanding the reason for trigger finger is the first step toward regaining full function of your hand. Whether you need conservative care or advanced surgical intervention, expert help is available.
At Greater Chesapeake Hand to Shoulder, our board-certified specialists are dedicated to restoring your quality of life. We offer comprehensive evaluations to determine the best course of action for your specific needs. Do not let hand pain limit your daily activities any longer.
Schedule an appointment with us today by calling (410) 296-6232 or using our request an appointment form.
